ubuntu源无法下载

qu@qu-All-Series:~$ sudo apt-get update 忽略 http://mirrors.163.com utopic InRelease 忽略 http://mirrors.163.com utopic-updates InRelease 忽略 http://mirrors.163.com utopic-backports InRelease 忽略 http://mirrors.163.com utopic-security InRelease   404  Not Found [IP: 123.58.173.186 80]   404  Not Found [IP: 123.58.173.186 80] 错误 http://mirrors.163.com utopic-security/restricted i386 Packages   404  Not Found [IP: 123.58.173.186 80] 错误 http://mirrors.163.com utopic-security/universe i386 Packages   404  Not Found [IP: 123.58.173.186 80] 错误 http://mirrors.163.com utopic-security/multiverse i386 Packages   404  Not Found [IP: 123.58.173.186 80] 忽略 http://mirrors.163.com utopic-security/main Translation-zh_CN 忽略 http://mirrors.163.com utopic-security/multiverse Translation-zh_CN 忽略 http://mirrors.163.com utopic-security/multiverse Translation-zh 忽略 http://mirrors.163.com utopic-security/restricted Translation-en W: 无法下载 http://mirrors.163.com/ubuntu/dists/utopic/restricted/binary-i386/Packages  404  Not Found [IP: 123.58.173.186 80] W: 无法下载 http://mirrors.163.com/ubuntu/dists/utopic/universe/binary-i386/Packages  404  Not Found [IP: 123.58.173.186 80] W: 无法下载 http://mirrors.163.com/ubuntu/dists/utopic/multiverse/binary-i386/Packages  404  Not Found [IP: 123.58.173.186 80]

W: 无法下载 http://mirrors.163.com/ubuntu/dists/utopic-updates/universe/source/Sources  404  Not Found [IP: 123.58.173.186 80]

E: Some index files failed to download. They have been ignored, or old ones used instead.

qu@qu-All-Series:~$

我下载的是ubuntu12.10版本，而这个版本提供的源无法下载东西。所以我建议大家以后下载ubuntu14.04 或者ubuntu 16.04这种.04的版本，不会出现无法下载的情况。